Retractable leash



FIG. 1 is a perspective view of an ornamental design for a retractable leash;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear side elevational view thereof; and,

FIG. 7 is a front side elevational view thereof.

The broken lines shown in the drawings depict portions of the retractable leash that form no part of the claimed design. 

CLAIM I claim the ornamental design for a retractable leash, as shown and described. 